A group, there ae 18 of them.
Each column on the periodic table is called group.There are 18 groups in total.For example 17th group belongs to Halogens.
Each vertical column in the periodic table is called a group. Elements within the same group share similar chemical properties due to their similar electron configurations. There are 18 groups in the modern periodic table.
Each column is a group of chemical elements.
The columns represent groups or families of elements. There are 18 of them.
Each (horizontal) row is called a '''period''', whereas each (vertical) column is called a group.
Each row on the periodic table is called a period, while each column is called a group.
Elements with the same number of valence electrons are in the same group (or vertical column).
Each vertical column in the periodic table is known as a group or family. Groups have similar chemical properties due to their same number of valence electrons, which influences their reactivity and bonding behavior. Elements in the same group often form similar types of compounds.
They are the vertical columns on the Periodic Table. Each column (top to bottom) is considered to be a group or family.
the number of protons
A row on the periodic table is a horizontal arrangement of elements that share similar properties. These elements have the same number of electron shells. Each row represents one energy level or electron shell in an atom.
each row in the Periodic Table is called a period.